CN111256191B - Open-close type buried pipe water dividing and collecting device and control method thereof - Google Patents
Open-close type buried pipe water dividing and collecting device and control method thereof Download PDFInfo
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- CN111256191B CN111256191B CN202010105014.5A CN202010105014A CN111256191B CN 111256191 B CN111256191 B CN 111256191B CN 202010105014 A CN202010105014 A CN 202010105014A CN 111256191 B CN111256191 B CN 111256191B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 658
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 238000005086 pumping Methods 0.000 claims description 39
- 230000008569 process Effects 0.000 claims description 18
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 238000012423 maintenance Methods 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
- F24D3/1066—Distributors for heating liquids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/02—Fluid distribution means
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Abstract
The invention discloses an open-close type buried pipe water distribution and collection device and a control method thereof, wherein the open-close type buried pipe water distribution and collection device comprises a water distributor, a water collector, an electric control reversing valve, a water distribution main pipe and a water collection main pipe which are arranged in a cellar well, the water distribution main pipe is respectively communicated with one end of each water distribution branch pipe in a sealing way, the other end of each water distribution branch pipe is respectively communicated with one end of a corresponding user, the other end of the user is respectively communicated with the corresponding water collection branch pipe in a sealing way, and each water collection branch pipe is respectively communicated with the; a set of mechanical self-plugging device is arranged between the water inlet of the water distribution branch pipe and the water outlet of the water collection branch pipe which are connected with the same user; the mechanical self-plugging device comprises a water diversion side plugging component, a water collection side plugging component and a limiting part, wherein the water diversion side plugging component is in threaded rotation fit with the water collection side plugging component. The water collecting and distributing device can realize mechanical automatic plugging of a leaking pipeline, and can also remove the plugging again after a leakage fault is eliminated, so that the whole water collecting and distributing device is normally put into use again, and the loss caused by pipeline leakage can be obviously reduced.
Description
Technical Field
The invention relates to the technical field of water collecting and distributing devices, in particular to an open-close type buried pipe water collecting and distributing device capable of automatically plugging corresponding pipelines in a leakage state and a control method thereof.
Background
The water collecting and collecting device is a device used for connecting a main heating water supply pipe and a water return pipe in a floor heating system. The water separator is divided into a water separator and a water collector. The water distributor is a water distribution device which is used for connecting water supply pipes of heating pipes in a water system. The water collector is a water collecting device which is arranged in a water system and is used for connecting water return pipes of heating pipes. The water distributor-collector consists of a main water distributor and a main water collector, the main water distributor is connected to a water supply pipe of a pipe network system, and the main water distributor-collector is mainly used for distributing hot water from the pipe network system to each room needing floor heating through a branch water distributor buried under the floor. When hot water flows in the ground heating pipe, heat is transferred to the floor, then the heat is transferred to indoor radiation through the floor, and then water flows are collected to the water collecting main pipe through the water collecting branch pipes corresponding to users and then are converged into the water treatment device.
The existing buried pipe water distributor-collector connection relates to a plurality of pipelines, leakage often occurs in the use process, the common method for detecting water pipeline leakage is realized by utilizing various sensors arranged on the pipelines, the alarm device correspondingly connected with the ground can alarm the leakage condition after detection so as to facilitate maintenance personnel to quickly overhaul and seal, and the maintenance personnel reminded by the alarm device can also adopt an electric control valve to close part of the pipelines so as to avoid further expansion of leakage influence. However, such systems are relatively complex in construction and prone to failure, for example, if a sensor or alarm device in the system fails, maintenance personnel must not immediately seal the leaking side in a timely manner, and significant economic loss is ultimately incurred.
Therefore, there is a need to design a device which has a simple structure and can rapidly self-seal a corresponding pipeline in the leakage condition of the pipeline to solve the defects in the prior art.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides an open-close type buried pipe water collector and a control method thereof, which have simple structure, can not only carry out mechanical automatic plugging on a pipeline when the pipeline leaks, but also can remove the plugging again after the leakage fault is eliminated, so that the whole water collector is put into use again normally.
In order to achieve the technical purpose, the invention is realized by the following technical scheme: the invention provides an open-close type buried pipe water distributing and collecting device which is characterized by comprising a water distributor, a water collector, an electric control reversing valve, a water distributing main pipe and a water collecting main pipe which are arranged in a cellar well, wherein the water distributor is hermetically communicated with the left end of the electric control reversing valve through a water distributor pipe; the water separator is communicated with the upper end of the water separation main pipe in a sealing way, and the water collector is communicated with the upper end of the water collection main pipe in a sealing way; the water distribution main pipe is respectively communicated with one end of each water distribution branch pipe in a sealing way, the other end of each water distribution branch pipe is respectively communicated with one end of a corresponding user, the other end of the user is respectively communicated with a corresponding water collection branch pipe in a sealing way, and each water collection branch pipe is respectively communicated with the water collection main pipe in a sealing way; the inlet of the water distribution branch pipe and the outlet of the water collection branch pipe which are connected with the same user are coaxially arranged, and a set of mechanical self-plugging device is arranged between the water inlet of the water distribution branch pipe and the water outlet of the water collection branch pipe which are correspondingly arranged; the mechanical self-sealing device comprises a water diversion side sealing assembly, a water collection side sealing assembly and a limiting part, wherein the water diversion side sealing assembly is in threaded rotation fit with the water collection side sealing assembly, and the limiting part is arranged above the water collection side sealing assembly and connected between a water diversion main pipe and a water collection main pipe.
Furthermore, the water diversion side plugging component comprises a water diversion side impeller, a water diversion side impeller shaft, a conical disc and a conical valve, wherein the water diversion side impeller is arranged at an inlet of the water diversion branch pipe, one end of the water diversion side impeller shaft is fixedly connected to the right end of the water diversion side impeller in a coaxial manner, the other end of the water diversion side impeller shaft penetrates through a shaft sleeve on the other end wall, opposite to the corresponding water diversion branch pipe, of the water diversion main pipe and then extends out of the water diversion main pipe, the water diversion side impeller shaft is suitable for being sealed and matched in the shaft sleeve in a rotating manner, and coaxial external threads are arranged on the outer annular surface of the outer side end of the water diversion side impeller shaft; the conical disc is coaxial and fixedly arranged on the impeller shaft at the water diversion side, and the conical valve is arranged on the inner wall of the water diversion branch pipe between the impeller at the water diversion side and the conical disc.
Furthermore, a conical valve hole is formed in the center of the conical valve, a plurality of flow guide holes capable of communicating the left cavity and the right cavity are formed in the valve seat on the outer side of the conical valve hole, an electromagnetic valve is arranged in each flow guide hole, and the conical disc is suitable for being in sealing fit with the conical surface of the conical valve hole.
Furthermore, the water collecting side plugging component comprises a water collecting side impeller and a water collecting side impeller shaft, the water collecting side impeller is arranged at an outlet of the water collecting branch pipe, the water collecting side impeller shaft is coaxially and fixedly connected with the left end of the water collecting side impeller, the left end of the water collecting side impeller shaft passes through a through hole formed in the water collecting main pipe and then extends out of the water collecting main pipe, the water collecting side impeller shaft can rotate and is in sealing fit with the corresponding through hole in the water collecting main pipe, a pair of limiting discs is fixedly arranged on the water collecting side impeller shaft, the pair of limiting discs are respectively positioned at two sides of the corresponding through hole on the water collecting main pipe so as to prevent the water collecting side impeller shaft from moving along the axial direction of the water collecting main pipe, the limiting discs are suitable for rotating matching with the wall of the water collecting main pipe, a coaxial screw hole is arranged at the inner side of the left end of the water collecting side impeller shaft, the external thread on the end face of the outer side of the corresponding water diversion side impeller shaft is suitable for being in threaded rotation fit with the screw hole, and at the moment, the water diversion side impeller shaft and the corresponding water collection side impeller shaft are arranged on the same rotation axis.
Further, the locating part includes slide rail, support, step motor, screw rod, slider and brake pads, the slide rail is established fixedly between water distribution house steward and water collection house steward, the support is fixed in on the slide rail, step motor fixed connection is at the support downside, the screw rod is connected with the rotor coaxial line of step motor right-hand member to the screw rod is parallel with the slide rail, slider sliding fit is on the slide rail, the brake pads is connected at the slider lower extreme fixedly, be equipped with at the left end of brake pads with screw rod complex screw, the brake pads passes through screw swing joint and can carry out the removal along its axis direction on the screw rod relatively on the screw rod.
Further, a friction block is arranged at the right end of the brake block.
Furthermore, the water distribution header pipe and the water collection header pipe are square pipes with rectangular sections.
Furthermore, the branch water distribution pipes and the branch water collection pipes are partially buried underground.
The control method of the open-close type buried pipe water collecting and distributing device under different modes is as follows:
1) normal mode of operation
The electric control reversing valve is powered off, the electric control reversing valve is in a left-right straight-through connection mode, water in the pumping pipe enters each water distribution branch pipe through the water distribution pipe, the water distributors and the water distribution main pipe, then sequentially passes through each user and the corresponding water collection branch pipe to return to the water collection main pipe, returns to the water pumping pipe through the water collector and the water collection pipe, then flows to an external water pump and then enters the pumping pipe again, and therefore circular reciprocating flow is conducted; by designing the blades of the water distribution side impeller and the blades of the water collection side impeller, the water distribution side impeller at the inlet of each water distribution branch pipe and the water collection side impeller at the outlet of the corresponding water collection branch pipe rotate in the same direction at the same rotating speed, and the water distribution side impeller shaft and the water collection side impeller shaft cannot axially move relatively;
2) leakage plugging mode
When a certain water diversion branch pipe, a user or a water collection branch pipe leaks, the flow rate of water flow at the inlet of the water diversion branch pipe far exceeds that of water flow at the outlet of the corresponding water collection branch pipe, at the moment, the rotating speed of the impeller at the water diversion side is obviously higher than that of the impeller at the corresponding water collection side, and because the impeller at the water collection side cannot axially move, in the process of rotating the threads between the external threads on the impeller shaft at the water diversion side and the screw holes in the impeller shaft at the water collection side, the impeller at the water diversion side and the impeller shaft at the water diversion side rotate and move leftwards along with one side of rotation, so that the outer conical surface of the valve hole of the conical disc at one side of the impeller at the water diversion side is pressed against the inner conical surface of the conical valve, and the two keep a sealed state, and the leaked water diversion branch pipe is;
3) unblocking mode
When the maintainer passes the overhaul and eliminates the fault of a leakage point, the electric control reversing valve is electrified, the electric control reversing valve enters a cross communication mode, and meanwhile, the electromagnetic valve on the branch water pipe corresponding to the leakage position is electrified and opened;
the water in the pumping pipe enters a water collector pipe, a water collector, a water collecting main pipe, each water collecting branch pipe, each user, each water distributing branch pipe, and enters a water distributing main pipe, a water distributor, a water distributing pipe and a water pumping pipe through a flow guide hole;
supplying power to a stepping motor on one side of the water collecting branch pipe corresponding to the leakage part, enabling the stepping motor to drive a brake block to move right through a screw rod, and enabling a friction block to be tightly pressed on a left limiting disc, so that the limiting disc is braked, and an impeller shaft on the water collecting side and an impeller on the water collecting side are braked;
in the process, water flows through the water diversion side impeller in the reverse direction, so that the water diversion side impeller rotates in the reverse direction, and meanwhile, as the water collection side impeller shaft cannot rotate, the water diversion side impeller, the conical disc and the water diversion side impeller shaft rotate and move to the right at the same time, so that a valve hole of the conical valve is opened;
maintenance personnel can observe and measure the axial displacement of the thread backspacing at the right end of the water diversion side impeller corresponding to the leakage position in the cellar well, in the process, the water diversion side impellers in the rest water diversion branch pipes without leakage rotate reversely, the water collection side impellers in the water collection branch pipes without leakage also rotate reversely, and because the blades of the water diversion side impellers and the blades of the water collection side impellers are designed in the prior art, the rotating speeds of the corresponding water diversion side impellers and the corresponding water collection side impellers are equal, so the water diversion side impellers in the water diversion branch pipes without leakage cannot move axially;
when the axial displacement of the thread backspacing reaches a set value A, the electric control reversing valve and the electromagnetic valve are powered off, and the stepping motor is controlled to rotate reversely, so that the friction block moves leftwards and the braking action of the friction block on the limiting disc is released;
when the blockage relieving mode is finished, the whole device including the water distributing branch pipe and the water collecting branch pipe corresponding to the leakage part is filled with water, and after the electric control reversing valve is switched, the whole device can immediately enter the normal working mode, so that the corresponding water distributing side impeller and the corresponding water collecting side impeller synchronously rotate in the same direction, and the change of the distance between the corresponding conical disc and the conical valve hole and the opening size of the valve hole is prevented;
4) installation and debugging mode
When the open-close type buried pipe water collector is well installed and needs to be put into use, all stepping motors are controlled to drive friction plates to brake a limiting disc, namely all water collecting side impellers are braked, an electric control reversing valve is powered off and is in a direct connection state, and water in a pumping pipe reaches a water pumping pipe through a water distributor pipe, a water distributor, a water distribution main pipe, water distribution branch pipes, users, water collecting branch pipes, a water collecting main pipe, a water collector and a water collecting pipe;
in the process, the rotating speed of each water diversion side impeller is higher than that of the corresponding water collection side impeller, so that each water diversion side impeller shaft axially moves leftwards while rotating and blocks the conical valve hole through the adjacent conical disc on one side;
judging whether valve holes on all the water distribution branch pipes are blocked or not by utilizing the numerical value of a flowmeter in the water pump, if so, electrifying all the electromagnetic valves and opening the electromagnetic valves to enable water to continuously flow in each water distribution branch pipe, each user and each water collecting branch pipe in a circulating manner until all the water distribution branch pipes, all the water collecting branch pipes, the water distribution main pipe, the water collecting main pipe, the water distributor, the water collector, the water distribution pipe, the water collecting pipe, the pumping pipe and the water pumping pipe are filled with water;
the water treatment device can remove bubbles in water, so that the water sent into the pumping pipe does not contain bubbles, and whether the whole system is full of water or not is judged by observing the content of the bubbles in the water in the transparent pumping pipe;
electrifying the electric control reversing valve, enabling the electric control reversing valve to enter a cross communication mode, simultaneously keeping the electrifying state of all the electromagnetic valves to enable all the electromagnetic valves to keep an opening state, reversing the flow direction of water in the whole system at the moment, enabling the water distributing side impellers in all the water distributing branch pipes to reversely rotate, and enabling all the water collecting side impellers to be still braked at the moment, synchronously rotating all the water distributing side impellers, the water distributing side impeller shafts and the conical discs to axially move right at one side, observing the axial displacement of the threads at the right end of each water distributing side impeller shaft in a cellar well by an installer, powering off the electric control reversing valve and each electromagnetic valve when the axial displacement reaches a set value A, simultaneously controlling each stepping motor to reversely rotate, and relieving the braking action of each limit disc by a friction block;
then, the open-close type ground pipe water distributor-collector enters the normal working mode;
when the axial positions of some water diversion side impellers are changed due to accidents in the operation process, the distance between the corresponding conical disc and the corresponding conical valve hole and the opening size of the valve hole are abnormal, the water supply of the water diversion side branch pipe where the water diversion side impeller is located is influenced, all the water diversion side impellers can be restored to the initially set axial positions again through the installation and debugging mode, and then the water diversion side impellers enter the normal working mode.
The invention has the beneficial effects that:
1. the open-close type underground water collecting and distributing device disclosed by the invention can realize mechanical automatic plugging of a leaking pipeline by adding the mechanical self-plugging device, and can also remove the plugging again after a leakage fault is eliminated, so that the whole water collecting and distributing device is put into use normally again, and the loss caused by pipeline leakage can be obviously reduced;
2. compared with a mode of detecting pipeline leakage by installing a sensor and an alarm device, the mechanical method is used for plugging the pipeline to perform subsequent obstacle removing work, and the mechanical component has the characteristics of high timeliness and low cost, and has a lower damage rate than an electronic sensing device, so that the service life of the whole equipment is prolonged.
Drawings
FIG. 1 is a schematic structural diagram of an open-close type buried pipe water distributor-collector;
FIG. 2 is a schematic structural view of a mechanical self-plugging device;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a control flow chart in a deblocking mode;
fig. 5 is a control flow diagram in the installation debug mode.
The system comprises a water distributor 1, a water collector 2, an electronic control reversing valve 3, a water distribution main pipe 4, a water collection main pipe 5, a water distribution pipe 6, a water collection pipe 7, a pumping pipe 8, a pumping pipe 9, a water pumping pipe 10, a water treatment device 11, a water pump 12, a water distribution branch pipe 13, a user 14, a water collection branch pipe 15 and a mechanical self-sealing device;
151-water diversion side plugging component, 152-water collection side plugging component and 153-limiting component;
1511-impeller at water diversion side, 1512-impeller shaft at water diversion side, 1513-conical disc, 1514-conical valve, 1515-shaft sleeve, 1516-external thread;
5141-conical valve hole, 5142-flow guide hole, 5143-electromagnetic valve;
1521-water collecting side impeller, 1522-water collecting side impeller shaft, 1523-limiting disc and 1524-screw hole;
1531-slide, 1532-bracket, 1533-stepping motor, 1534-screw, 1535-slide, 1536-brake block, 1537-friction block.
Detailed Description
The following examples further illustrate the present invention but are not to be construed as limiting the invention. Modifications and substitutions to methods, procedures, or conditions of the invention may be made without departing from the spirit of the invention.
In order to more simply and effectively seal and block a leaked pipeline in time and further reduce loss caused by leakage, the embodiment discloses an open-close type buried pipe water distributor-collector, which comprises a water distributor 1, a water collector 2, an electric control reversing valve 3, a water distribution header pipe 4 and a water collection header pipe 5 which are arranged in a cellar well, wherein the water distributor 1 is hermetically communicated with the left end of the electric control reversing valve 3 through a water distributor pipe 6, the water collector 2 is hermetically communicated with the left end of the electric control reversing valve 3 through a water collector pipe 7, the right end of the electric control reversing valve 3 is hermetically communicated with a pumping pipe 8 and a water pumping pipe 9 respectively, and the pumping pipe 8 and the water pumping pipe 9 are respectively connected with a water pump 11 in a water treatment device 10 outside the cellar well; the water separator 1 is communicated with the upper end of the water separation main pipe 4 in a sealing way, and the water collector 2 is communicated with the upper end of the water collection main pipe 5 in a sealing way; the water distribution header pipe 4 is respectively communicated with one end of each water distribution branch pipe 12 in a sealing way, the other end of each water distribution branch pipe 12 is respectively communicated with one end of a corresponding user 13, the other end of the user 13 is respectively communicated with a corresponding water collection branch pipe 14 in a sealing way, and each water collection branch pipe 14 is respectively communicated with the water collection header pipe 5 in a sealing way; the inlet of the water diversion branch pipe 12 and the outlet of the water collection branch pipe 14 which are connected with the same user 13 are coaxially arranged, and a set of mechanical self-plugging device 15 is arranged between the water inlet of the water diversion branch pipe 12 and the water outlet of the water collection branch pipe 14 which are correspondingly arranged;
the mechanical self-plugging device 15 comprises a water diversion side plugging component 151, a water collection side plugging component 152 and a limiting component 153, wherein the water diversion side plugging component 151 is in threaded rotation fit with the water collection side plugging component 152, and the limiting component 153 is arranged above the water collection side plugging component 152 and is connected between the water diversion main 4 and the water collection main 5.
The water diversion side plugging component 151 comprises a water diversion side impeller 1511, a water diversion side impeller shaft 1512, a conical disc 1513 and a conical valve 1514, the water diversion side impeller 1511 is arranged at the inlet of the water diversion branch pipe 12, one end of the water diversion side impeller shaft 1512 is coaxially and fixedly connected to the right end of the water diversion side impeller 1511, the other end of the water diversion side impeller shaft 1512 penetrates through a shaft sleeve 1515 on the other end wall of the water diversion manifold 4 opposite to the corresponding water diversion branch pipe 12 and then extends out of the water diversion manifold 4, the water diversion side impeller shaft 1512 is suitable for sealing and rotating to be matched in the shaft sleeve 1515, and coaxial external threads 1516 are arranged on the outer ring surface of the outer end of the water diversion side impeller shaft 1512; the conical disc 1513 is coaxially and fixedly arranged on the water diversion side impeller shaft 1512, and the conical valve 1514 is arranged on the inner wall of the water diversion branch pipe 12 between the water diversion side impeller 1511 and the conical disc 1513.
The center of the conical valve 1514 is provided with a conical valve hole 5141, a plurality of flow guide holes 5142 which can be communicated with the left cavity and the right cavity are arranged on the valve seat outside the conical valve hole 5141, an electromagnetic valve 5143 is arranged in each flow guide hole 5142, and the conical disc 1513 is suitable for being in sealing fit with the conical surface of the conical valve hole 5141.
The water collecting side plugging assembly 152 comprises a water collecting side impeller 1521 and a water collecting side impeller shaft 1522, the water collecting side impeller 1521 is arranged at an outlet of the water collecting branch pipe 14, the water collecting side impeller shaft 1522 is coaxially and fixedly connected to the left end of the water collecting side impeller 1521, the left end of the water collecting side impeller shaft 1522 penetrates through a through hole formed in the water collecting main pipe 5 and then extends out of the water collecting main pipe 5, the water collecting side impeller shaft 1522 can rotate and is in sealing fit with the corresponding through hole in the water collecting main pipe 5, a pair of limiting discs 1523 are fixedly arranged on the water collecting side impeller shaft 1522, the limiting discs 1523 are respectively positioned on two sides of the corresponding through hole in the water collecting main pipe 5, so that the water collecting side impeller shaft 2 is prevented from moving along the axial direction of the water collecting side impeller shaft 1523, the limiting discs 1523 are in rotational fit with the wall of the water collecting main pipe 5, a coaxial screw hole 1524 is arranged on the inner side of the left end of the water collecting side impeller shaft 1522, and an external thread 1516 on the corresponding water distributing side end surface is in threaded fit with the, at this time, the diversion-side impeller shaft 1512 and the corresponding collection-side impeller shaft 1522 are disposed coaxially.
The position-limiting member 153 includes a slide rail 1531, a bracket 1532, a step motor 1533, a screw 1534, a slider 1535 and a brake block 1536, wherein the slide rail 1531 is fixedly disposed between the water distribution manifold 4 and the water collection manifold 5, the bracket 1532 is fixed to the slide rail 1531, the step motor 1533 is fixedly connected to the lower side of the bracket 1532, the screw 1534 is coaxially connected to the rotor at the right end of the step motor 1533, the screw 1534 is parallel to the slide rail 1531, the slider 1535 is slidably fitted to the slide rail 1531, the brake block 1536 is fixedly connected to the lower end of the slider 1535, the left end of the brake block 1536 is provided with a screw hole for fitting the screw 1534, and the brake block 1536 is movably connected to the screw 1534 through the screw hole and can move along the axial direction of.
The right end of the brake block 1536 is provided with a friction block 1537 to enhance the friction force when the brake block 1536 contacts the limiting disc 1523, thereby enhancing the braking effect.
The water distribution header pipe 4 and the water collection header pipe 5 are square pipes with rectangular sections; the branch water distribution pipes 12 and the branch water collection pipes 14 may be partially buried underground.
The control method of the device comprises the following steps:
1. normal mode of operation
The electric control reversing valve 3 is powered off and is in a left-side and right-side straight-through connection mode, water in the pumping pipe 8 enters each water distribution branch pipe 12 through the water distribution pipe 6, the water distributor 1 and the water distribution header pipe 4, then sequentially passes through each user 13 and the corresponding water collection branch pipe 14 to return to the water collection header pipe 5, returns to the pumping pipe 9 through the water collector 2 and the water collector pipe 7, then flows to the external water pump 11 and then enters the pumping pipe 8 again, and accordingly circular reciprocating flow is achieved. By designing the blades of the water diversion side impeller 1511 and the blades of the water collection side impeller 1521, at this time, the water diversion side impeller 1511 at the inlet of each water diversion branch pipe 12 and the water collection side impeller 1521 at the outlet of the corresponding water collection branch pipe 14 rotate in the same direction at the same rotating speed, and the water diversion side impeller shaft 1512 and the water collection side impeller shaft 1522 cannot axially move relatively;
2. leakage plugging mode
When a certain branch pipe 12, a user 13 or a branch pipe 14 leaks, the flow rate of the water flow at the inlet of the branch pipe 12 far exceeds the flow rate of the water flow at the outlet of the corresponding branch pipe 14, at this time, the rotation speed of the branch side impeller 1511 is obviously faster than that of the corresponding branch pipe 1521, and because the branch side impeller 1521 cannot move axially, during the thread rotation between the external thread 1516 on the branch side impeller shaft 1512 and the screw hole 1524 in the branch side impeller shaft 1522, the branch side impeller 1511 and the branch side impeller shaft 1512 rotate and move leftwards simultaneously, so that the conical surface of the conical disc 1513 on one side of the branch side impeller 1511 is pressed against the inner circle of the conical valve hole 5141 of the conical valve 1514, and the sealing state of the two is maintained, thereby the branch pipe 12 is blocked; the plugging process is completed in a mechanical mode, a control device or a sensor is not needed to intervene, the structure of the whole device is simpler, the reliability is higher, and meanwhile, the automation of the plugging process is also realized. Because negative pressure exists in the water collector 2 and the water collecting main pipe 5 under the action of the water pump, when a certain part leaks, water flowing into the water collecting main pipe 5 from the other water collecting branch pipes 14 in a normal working state cannot reversely enter the water collecting branch pipe 14 with a leakage fault and flow out from the leakage part, and therefore, the leakage loss of the part does not exist. After the plugging process is completed, only the water distribution branch pipe 12 and the water collection branch pipe 14 corresponding to the leakage position do not have water to pass through, and other water distribution branch pipes 12, users 13 and water collection branch pipes 14 which do not leak still work normally, so that the benefits of the most users are guaranteed, and the operation reliability and the flexibility in fault handling of the automatic opening and closing type underground water collection and distribution device are improved.
3. Unblocking mode
As shown in fig. 4, when the maintenance personnel get rid of the fault of the leakage point through the maintenance, the electrically controlled directional valve 3 is energized, the electrically controlled directional valve 3 enters the cross connection mode, and at the same time, the electromagnetic valve 5143 on the branch pipe 12 corresponding to the leakage point is energized and the electromagnetic valve 5143 is opened. The water in the pumping pipe 8 enters the collector pipe 7, the water collector 2, the collecting main pipe 5, each collecting branch pipe 14, each user 13, each water distribution branch pipe 12, the water enters the water distribution main pipe 4, the water distributor 1, the water distribution pipe 6 and the water pumping pipe 9 through the diversion hole 5142.
The stepping motor 1533 on the side of the water collecting branch pipe 14 corresponding to the leakage position is powered, so that the stepping motor 1533 drives the brake block 1536 to move right through the screw 1534, and the friction block 1537 is pressed on the left limiting disc 1523 to brake the limiting disc 1523, thereby braking the water collecting side impeller shaft 1522 and the water collecting side impeller 1521. In this process, water flows in the reverse direction through the water diversion side impeller 1511, so that the water diversion side impeller 1511 rotates in the reverse direction, and at the same time, since the water collection side impeller shaft 1522 cannot rotate, the water diversion side impeller 1511, the conical disc 1513, and the water diversion side impeller shaft 1512 move to the right while rotating, and the valve hole 5141 of the conical valve 1514 is opened. Maintenance personnel can observe and measure the axial displacement of the thread backspacing at the right end of the water diversion side impeller 1511 corresponding to the leakage position in the cellar well, in the process, the water diversion side impellers 1511 in the rest water diversion branch pipes 12 without leakage rotate reversely, the water collection side impeller 1521 in the water collection branch pipe 14 without leakage also rotates reversely, and due to the design of the blades of the water diversion side impeller 1511 and the blades of the water collection side impeller 1521, the rotating speeds of the corresponding water diversion side impeller 1511 and the corresponding water collection side impeller 1521 are equal at the moment, so the water diversion side impeller 1511 in the water diversion branch pipes 12 without leakage cannot move axially.
When the axial displacement of the thread retraction reaches a set value a, the electric control reversing valve 3 and the electromagnetic valve 5143 are powered off, and the stepping motor 1533 is controlled to rotate in the reverse direction, so that the friction block 1537 moves to the left and the braking effect on the limiting disc 1523 is released.
When the blockage relieving mode is finished, the whole device including the water distribution branch pipe 12 and the water collection branch pipe 14 corresponding to the leakage part is filled with water, and after the electric control reversing valve 3 is switched, the whole device can immediately enter the normal working mode, so that the corresponding water distribution side impeller 1511 and the corresponding water collection side impeller 1521 synchronously rotate in the same direction, and the change of the distance between the corresponding conical disc 1513 and the conical valve hole 5141 and the opening size of the valve hole is prevented.
4. Installation and debugging mode
As shown in fig. 5, when the open-close type buried pipe water collector is installed and needs to be put into use, all stepping motors 1533 are controlled to drive friction plates 1537 to brake the limiting discs 1523, namely all water collecting side impellers 1521 are braked, the electric control reversing valve 3 is powered off and is in a through connection state, and water in the pumping pipe 8 reaches the water pumping pipe 9 through the water distributor pipe 6, the water distributor 1, the water distribution header pipe 4, the water distribution branch pipes 12, the users 13, the water collecting branch pipes 14, the water collecting header pipe 5, the water collector 2 and the water collector pipe 7. In this process, the rotation speed of each water diversion side impeller 1511 is faster than that of the corresponding water collection side impeller 1521, so that each water diversion side impeller shaft 1512 axially moves leftward while rotating and blocks the conical valve hole 5141 by the adjacent conical disc 1513 on one side; whether valve holes on all the branch water diversion pipes 12 are blocked is judged by utilizing the numerical value of a flow meter in the water pump 11, if the valve holes are blocked, all the electromagnetic valves 5143 are electrified, the electromagnetic valves 5143 are opened, and water can continuously circulate in all the branch water diversion pipes 12, all the users 13 and all the branch water collection pipes 14 until all the branch water diversion pipes 12, all the branch water collection pipes 14, the water diversion header pipe 4, the water collection header pipe 5, the water distributor 1, the water collector 2, the water diversion pipe 6, the water collection pipe 7, the pumping pipe 8 and the water pumping pipe 9 are filled with water. The water treatment apparatus 10 can remove air bubbles in water, and can judge whether or not the whole system is filled with water by observing the content of air bubbles in water in the transparent water suction pipe 9 so that the water fed into the pumping pipe 8 does not contain air bubbles.
Electrifying the electric control reversing valve 3, enabling the electric control reversing valve 3 to enter a cross communication mode, simultaneously keeping the electrifying state of all the electromagnetic valves 5143 to keep the opening state of each electromagnetic valve 5143, at the moment, the flow direction of water in the whole system is reversed, the water diversion side impeller 1511 in each water diversion branch pipe 12 rotates reversely, because all the water collection side impeller 1521 is still braked at the moment, all the water diversion side impeller 1511, the water diversion side impeller shaft 1512 and the conical disc 1513 synchronously rotate and move axially and rightwards at one time, an installer observes the axial displacement of the threads at the right end of each water diversion side impeller shaft 1512 in a cellar well, and when the axial displacement reaches a set value A, the electric control reversing valve 3 and each electromagnetic valve 5143 are powered off, and simultaneously controls each stepping motor 1533 to rotate reversely and relieves the braking action of the friction block 1537 on each limiting disc 1523.
Then, the open-close type buried pipe water collecting and distributing device enters the normal working mode.
In the operation process, the axial positions of some water diversion side impellers 1511 are changed due to accidents, the distance between the corresponding conical disc 1513 and the conical valve hole 5141 and the opening size of the valve hole are abnormal, the water supply of the water diversion branch pipe 12 where the water diversion side impellers 1511 are located is influenced, all the water diversion side impellers 1511 can be restored to the initially set axial positions again through the installation and debugging mode, and then the normal working mode is entered.
The effect of the set value a is that, after the axial displacement of the diversion-side impeller shaft 1512 exceeds the set value a, the distance between the conical disc 1513 and the conical valve hole 5141 is large enough, and the size of the opening of the valve hole does not affect the impact effect of the water flow on the diversion-side impeller 1511 blades.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. However, the above description is only an example of the present invention, the technical features of the present invention are not limited thereto, and any other embodiments that can be obtained by those skilled in the art without departing from the technical solution of the present invention should be covered by the claims of the present invention.
Claims (6)
1. An open-close type buried pipe water distributing and collecting device is characterized by comprising a water distributor, a water collector, an electric control reversing valve, a water distributing main pipe and a water collecting main pipe which are arranged in a cellar well, wherein the water distributor is hermetically communicated with the left end of the electric control reversing valve through a water distributor pipe;
the water separator is communicated with the upper end of the water separation main pipe in a sealing way, and the water collector is communicated with the upper end of the water collection main pipe in a sealing way; the water distribution main pipe is respectively communicated with one end of each water distribution branch pipe in a sealing way, the other end of each water distribution branch pipe is respectively communicated with one end of a corresponding user, the other end of the user is respectively communicated with a corresponding water collection branch pipe in a sealing way, and each water collection branch pipe is respectively communicated with the water collection main pipe in a sealing way;
the inlet of the water distribution branch pipe and the outlet of the water collection branch pipe which are connected with the same user are coaxially arranged, and a set of mechanical self-plugging device is arranged between the water inlet of the water distribution branch pipe and the water outlet of the water collection branch pipe which are correspondingly arranged;
the mechanical self-plugging device comprises a water diversion side plugging component, a water collection side plugging component and a limiting part, wherein the water diversion side plugging component is in threaded rotation fit with the water collection side plugging component, and the limiting part is arranged above the water collection side plugging component and connected between a water diversion main pipe and a water collection main pipe;
the water diversion side plugging assembly comprises a water diversion side impeller, a water diversion side impeller shaft, a conical disc and a conical valve, wherein the water diversion side impeller is arranged at an inlet of a water diversion branch pipe, one end of the water diversion side impeller shaft is fixedly connected to the right end of the water diversion side impeller in a coaxial manner, the other end of the water diversion side impeller shaft penetrates through a shaft sleeve on the other end wall, opposite to the corresponding water diversion branch pipe, of a water diversion main pipe and then extends out of the water diversion main pipe, the water diversion side impeller shaft is suitable for being sealed and matched in the shaft sleeve in a rotating manner, and coaxial external threads are arranged on the outer ring surface of the outer side end of the water diversion side impeller; the conical disc is coaxial and fixedly arranged on the impeller shaft at the water diversion side, and the conical valve is arranged on the inner wall of the water diversion branch pipe between the impeller at the water diversion side and the conical disc;
the water collecting side blocking assembly comprises a water collecting side impeller and a water collecting side impeller shaft, the water collecting side impeller is arranged at an outlet of the water collecting branch pipe, the water collecting side impeller shaft is coaxially and fixedly connected to the left end of the water collecting side impeller, the left end of the water collecting side impeller shaft penetrates through a through hole formed in the water collecting main pipe and then extends out of the water collecting main pipe, the water collecting side impeller shaft can rotate and is in sealing fit with the corresponding through hole in the water collecting main pipe, a coaxial screw hole is formed in the inner side of the left end of the water collecting side impeller shaft, an external thread on the outer end face of the corresponding water distributing side impeller shaft is suitable for being in threaded rotation fit with the screw hole, and at the moment, the water collecting side impeller shaft and the corresponding water collecting side impeller shaft are arranged on the same rotation axis;
the limiting part comprises a sliding rail, a support, a stepping motor, a screw rod, a sliding block and a brake block, the sliding rail is fixedly arranged between the water distribution header pipe and the water collection header pipe, the support is fixed on the sliding rail, the stepping motor is fixedly connected to the lower side of the support, the screw rod is coaxially connected with a rotor at the right end of the stepping motor and is parallel to the sliding rail, the sliding block is in sliding fit on the sliding rail, the brake block is fixedly connected to the lower end of the sliding block, a screw hole matched with the screw rod is formed in the left end of the brake block, and the brake block is movably connected to the screw rod through the screw hole and;
the center of the conical valve is provided with a conical valve hole, a plurality of flow guide holes which can be communicated with the left cavity and the right cavity are arranged on the valve seat outside the conical valve hole, an electromagnetic valve is arranged in each flow guide hole, and the conical disc is suitable for being in sealing fit with the conical surface of the conical valve hole.
2. The open-close type buried pipe water collecting and distributing device as claimed in claim 1, wherein a pair of limiting discs are fixedly arranged on the water collecting side impeller shaft, the limiting discs are respectively positioned at two sides of the corresponding through hole on the water collecting main pipe, so as to prevent the water collecting side impeller shaft from moving along the axial direction of the water collecting main pipe, and the limiting discs are in fit with the wall of the water collecting main pipe in a rotating way.
3. The open-closed type ground pipe water distributor-collector according to claim 2, wherein a friction block is provided at the right end of the braking block.
4. The open-close type buried pipe water distributor-collector according to claim 3, wherein the water distribution main pipe and the water collection main pipe are square pipes with rectangular sections.
5. The open-close type ground pipe water distributor-collector according to claim 4, wherein the water distributing branch pipe and the water collecting branch pipe are partially buried underground.
6. The control method of the open-close type buried pipe water distributor according to any one of claims 1 to 5, wherein the control method in different modes is as follows:
1) normal mode of operation
The electric control reversing valve is powered off, the electric control reversing valve is in a left-right straight-through connection mode, water in the pumping pipe enters each water distribution branch pipe through the water distribution pipe, the water distributors and the water distribution main pipe, then sequentially passes through each user and the corresponding water collection branch pipe to return to the water collection main pipe, returns to the water pumping pipe through the water collector and the water collection pipe, then flows to an external water pump and then enters the pumping pipe again, and therefore circular reciprocating flow is conducted; by designing the blades of the water distribution side impeller and the blades of the water collection side impeller, the water distribution side impeller at the inlet of each water distribution branch pipe and the water collection side impeller at the outlet of the corresponding water collection branch pipe rotate in the same direction at the same rotating speed, and the water distribution side impeller shaft and the water collection side impeller shaft cannot axially move relatively;
2) leakage plugging mode
When a certain water diversion branch pipe, a user or a water collection branch pipe leaks, the flow rate of water flow at the inlet of the water diversion branch pipe far exceeds that of water flow at the outlet of the corresponding water collection branch pipe, at the moment, the rotating speed of the impeller at the water diversion side is obviously higher than that of the impeller at the corresponding water collection side, and because the impeller at the water collection side cannot axially move, in the process of rotating the threads between the external threads on the impeller shaft at the water diversion side and the screw holes in the impeller shaft at the water collection side, the impeller at the water diversion side and the impeller shaft at the water diversion side rotate and move leftwards along with one side of rotation, so that the outer conical surface of the valve hole of the conical disc at one side of the impeller at the water diversion side is pressed against the inner conical surface of the conical valve, and the two keep a sealed state, and the leaked water diversion branch pipe is;
3) unblocking mode
When the maintainer overhauls and eliminates the fault of a leakage point, the electric control reversing valve is electrified, the electric control reversing valve enters a cross communication mode, and meanwhile, the electromagnetic valve on the branch water pipe corresponding to the leakage position is electrified and opened;
the water in the pumping pipe enters a water collector pipe, a water collector, a water collecting main pipe, each water collecting branch pipe, each user, each water distributing branch pipe, and enters a water distributing main pipe, a water distributor, a water distributing pipe and a water pumping pipe through a flow guide hole;
supplying power to a stepping motor on one side of the water collecting branch pipe corresponding to the leakage part, enabling the stepping motor to drive a brake block to move right through a screw rod, and enabling a friction block to be tightly pressed on a left limiting disc, so that the limiting disc is braked, and an impeller shaft on the water collecting side and an impeller on the water collecting side are braked;
in the process, water flows through the water diversion side impeller in the reverse direction, so that the water diversion side impeller rotates in the reverse direction, and meanwhile, as the water collection side impeller shaft cannot rotate, the water diversion side impeller, the conical disc and the water diversion side impeller shaft rotate and move to the right at the same time, so that a valve hole of the conical valve is opened;
maintenance personnel can observe and measure the axial displacement of the thread backspacing at the right end of the water diversion side impeller corresponding to the leakage position in the cellar well, in the process, the water diversion side impellers in the rest water diversion branch pipes without leakage rotate reversely, the water collection side impellers in the water collection branch pipes without leakage also rotate reversely, and because the blades of the water diversion side impellers and the blades of the water collection side impellers are designed in the prior art, the rotating speeds of the corresponding water diversion side impellers and the corresponding water collection side impellers are equal, so the water diversion side impellers in the water diversion branch pipes without leakage cannot move axially;
when the axial displacement of the thread backspacing reaches a set value A, the electric control reversing valve and the electromagnetic valve are powered off, and the stepping motor is controlled to rotate reversely, so that the friction block moves leftwards and the braking action of the friction block on the limiting disc is released;
when the blockage relieving mode is finished, the whole device including the water distributing branch pipe and the water collecting branch pipe corresponding to the leakage part is filled with water, and after the electric control reversing valve is switched, the whole device can immediately enter the normal working mode, so that the corresponding water distributing side impeller and the corresponding water collecting side impeller synchronously rotate in the same direction, and the change of the distance between the corresponding conical disc and the conical valve hole and the opening size of the valve hole is prevented;
4) installation and debugging mode
When the open-close type buried pipe water collector is well installed and needs to be put into use, all stepping motors are controlled to drive friction plates to brake a limiting disc, namely all water collecting side impellers are braked, an electric control reversing valve is powered off and is in a direct connection state, and water in a pumping pipe reaches a water pumping pipe through a water distributor pipe, a water distributor, a water distribution main pipe, water distribution branch pipes, users, water collecting branch pipes, a water collecting main pipe, a water collector and a water collecting pipe;
in the process, the rotating speed of each water diversion side impeller is higher than that of the corresponding water collection side impeller, so that each water diversion side impeller shaft axially moves leftwards while rotating and blocks the conical valve hole through the adjacent conical disc on one side;
judging whether valve holes on all the water distribution branch pipes are blocked or not by utilizing the numerical value of a flowmeter in the water pump, if so, electrifying all the electromagnetic valves and opening all the electromagnetic valves so that water can continuously flow in each water distribution branch pipe, each user and each water collecting branch pipe in a circulating manner until all the water distribution branch pipes, all the water collecting branch pipes, the water distribution main pipe, the water collecting main pipe, the water distributor, the water collector, the water distribution pipe, the water collecting pipe, the pumping pipe and the water pumping pipe are filled with water;
the water treatment device can remove bubbles in water, so that the water sent into the pumping pipe does not contain bubbles, and whether the whole system is full of water or not is judged by observing the content of the bubbles in the water in the transparent pumping pipe;
electrifying the electric control reversing valve, enabling the electric control reversing valve to enter a cross communication mode, simultaneously keeping the electrifying state of all the electromagnetic valves to enable all the electromagnetic valves to keep an opening state, reversing the flow direction of water in the whole system at the moment, enabling the water distributing side impellers in all the water distributing branch pipes to reversely rotate, and enabling all the water collecting side impellers to be still braked at the moment, synchronously rotating all the water distributing side impellers, the water distributing side impeller shafts and the conical discs to axially move right at one side, observing the axial displacement of the threads at the right end of each water distributing side impeller shaft in a cellar well by an installer, powering off the electric control reversing valve and each electromagnetic valve when the axial displacement reaches a set value A, simultaneously controlling each stepping motor to reversely rotate, and relieving the braking action of each limit disc by a friction block;
then, the open-close type ground pipe water distributor-collector enters the normal working mode;
when the axial positions of some water diversion side impellers are changed due to accidents in the operation process, the distance between the corresponding conical disc and the corresponding conical valve hole and the opening size of the valve hole are abnormal, the water supply of the water diversion side branch pipe where the water diversion side impeller is located is influenced, all the water diversion side impellers can be restored to the initially set axial positions again through the installation and debugging mode, and then the water diversion side impellers enter the normal working mode.
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| CN114738168B (en) * | 2022-04-29 | 2023-07-04 | 河海大学 | Miniature pipeline water turbine integrating valve and power generation function |
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| KR20050073637A (en) * | 2004-01-09 | 2005-07-18 | 송종석 | Individual heating system to be possible thermostatic control of each heating zone |
| CN201387180Y (en) * | 2009-04-30 | 2010-01-20 | 田建学 | Water collecting and dividing device of underground heat exchange buried pipe of ground-source heat pump system |
| KR100953445B1 (en) * | 2009-10-01 | 2010-04-20 | 신영식 | Fuzzy logic flow control system |
| CN203148134U (en) * | 2013-02-07 | 2013-08-21 | 江苏新城新能源有限公司 | Ground source heat pump buried pipe system with monitoring function |
| CN206145767U (en) * | 2016-11-03 | 2017-05-03 | 黄贤臻 | Take underfloor heating system of monitor control device |
| CN106678927A (en) * | 2017-02-07 | 2017-05-17 | 俞银星 | Water way reversing system capable of switching normal and reverse circulation directions, water heating device and heating method |
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| CN207527877U (en) * | 2017-12-06 | 2018-06-22 | 金大地新能源（天津）集团股份有限公司 | Ground buried pipe of ground source heat pump pipe well leak detection control system |
| KR102074587B1 (en) * | 2018-09-12 | 2020-02-06 | 지에스건설 주식회사 | Hot-water heating system |
| CN110645482A (en) * | 2019-10-30 | 2020-01-03 | 上海诺佛尔生态科技有限公司 | Integrated underground pipe system with leakage alarm function and leakage detection method |
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